The Effects of Platform Vibration On Upper Body Muscle Activity During Pushups
Bibliographic record
Abstract
The main objective of this study was to determine the optimal vibrating platform frequency and amplitude to stimulate increases in EMG muscle activity in the pectoralis major (PM), latissimus dorsi (LD), triceps brachii (TB), and bicep brachii (BB) during pushups. Fifteen subjects performed pushups with no vibration (NV), or random frequency (25, 35, 45 Hz) and amplitude (2 or 4 mm) combinations. Ratings of perceived exertion (RPE) and heart rate (HR) were collected following each condition. RPE data did not consistently demonstrate that vibration was significantly different from NV, and HR did not vary between conditions. The only statistically significant (p<0.05) increase in EMGRMS muscle activity over NV was demonstrated at the 45Hz, 4mm condition in the TB (4.37 ▒ 1.48 %MVE), and BB (7.64 ▒ 2.5%MVE). No other vibration conditions had an effect on PM, LD, TB, or BB muscle activty.
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How this classification was reachedexpand
Full frame distilled prediction
Teacher imitationNot calibrated prevalence, not ground truth. Human validation pending. Learned from the 10,348 direct Codex labels and 10,348 direct Gemma labels. Candidate is the union of thresholded teacher heads; consensus is their intersection. These outputs are machine_predicted_unvalidated and are not human labels or direct frontier model labels.
Codex and Gemma teacher scores by category
| Category | Codex | Gemma |
|---|---|---|
| Metaresearch | 0.002 | 0.001 |
| Meta-epidemiology (narrow) | 0.000 | 0.000 |
| Meta-epidemiology (broad) | 0.000 | 0.000 |
| Bibliometrics | 0.000 | 0.001 |
| Science and technology studies | 0.000 | 0.001 |
| Scholarly communication | 0.000 | 0.001 |
| Open science | 0.000 | 0.000 |
| Research integrity | 0.000 | 0.000 |
| Insufficient payload (model declined to judge) | 0.000 | 0.000 |
Machine scores (provisional)
The two teacher heads of the student model, read on this work. A score orders the frame for review; it never asserts a category, and the validation status ships verbatim with every row.
Baseline scores from an immature model (maturity gate not passed, 7 training rounds). Scores rank; they never assert a category.
score_only:v0-immature-baseline · verbatim from the scoring run: score_only means the number may rank works, and no category label ships from itClassification
machine, unvalidatedMachine predicted; a candidate call from one teacher head, not a consensus.
How this classification was reached, model by model and score by score, is at the end of the page under "How this classification was reached".